乌鲁木齐地区夏半年云系及其降水预报研究

Study of the Cloud System and Its Precipitation Forecast in the Urumqi District during Summer Half-year

应用静止气象卫星GMS—5的红外云图及其数字化资料对1998～2001年4～9月、2002年4月乌鲁木齐地区99场小量、8场中量、25场大量、11场暴量降水过程进行了分析,总结出造成乌鲁木齐地区降水的主要云系特征与路径分型、云系与天气系统配置关系、相应降水情况的概念模式以及在实际业务中应用静止气象卫星云图及其数字化资料制作降水预报应注意的问题。

Using GMS-5 satellite infrared images the precipitation processes in Urumqi are studied from April to September during 1998-2001 and in April of 2002. Through analyzing 99 processes of light precipitation, 8 processes of moderate precipitation, 25 processes of heavy precipitation and 11 processes of torrential precipitation, the main features, paths of cloud system and relations between cloud system and weather system are summarized.